2.6 Device Capabilities
The device capabilities protocol extension enables the Wi-Fi Display Source to determine whether the Wi-Fi Display Sink supports certain capabilities.
The extension consists of a data structure that specifies whether a given capability is supported. There is a separate data structure for each capability.
The data structures extend [WF-DTS2.1] section 6.1.
Currently, the extension defines the wfd_idr_request_capability data structure (section 2.6.1.1).